A millionaire Long Island couple turned two Indonesian housekeepers into slaves with “punishment that escalated into a cruel form of torture,” the prosecution charged during closing arguments yesterday in federal court.

“This did not happen in the 1800s; this happened in the 21st century in Muttontown,” Assistant US Attorney Mark Lesko said in the Central Islip court.

But Jeffrey Hoffman, lawyer for Varsha “Cruella” Sabhnani, cited alleged lies and inconsistencies in the testimony of the housekeepers, Samirah and Enung – and repeatedly flashed the words “reasonable doubt” on a large screen for jurors to see.

Samirah, he said, believed Cruella had placed a curse on her son, who later died of tuberculosis, so she “was going to do everything she could to make her miserable.”